@randsum/dice/dist/src/utils/calculateTotal.js

A flexible, type-safe dice roller for tabletop RPGs, game development, and probability simulations

export function calculateTotal(rolls, bonus = 0) {
    if (rolls.every((roll) => typeof roll === 'number')) {
        return rolls.reduce((acc, cur) => acc + cur, bonus);
    }
    return rolls.flat().join(', ');
}